The yearly celebration of a person's first
time trying or enjoying cannabis in some form. Sometimes celebrated by sharing one's cannabis or paraphernalia with members of their smoking community (
reddit.com/trees, for example). Can also be celebrated with cannabis-infused space cake with candles.
Also, just another reason to get together with your
stoner friends and get baked. Not to be confused with 4/20, the annual holiday that celebrates pot culture in general.
Miles invites his stoner circle over to his house every year at 4:20 on July 5th to celebrate his canniversary with them. They usually bring him gifts of
rolling papers, a dub
sack, and next year, they're going to Amsterdam for his canniversary!